This example shows configuring the newly-installed NEM Ethernet interface eth2 to be
IP address 10.1.10.156, which is declared in what used to be known as
a Class C (8-bit/255-node) local area network (or LAN).

Note that the inet addr shows the following:

TCP IPv4 address 10.1.10.156 as specified in the ifconfig command

IPv6 address has been automatically derived (in this example, Linux is configured to also support IPv6 network communications)